Most detailed 3D map ever of Milky Manner consists of practically 2 billion stars

The map measures stars nearer to the sting of the Milky Manner than ever earlier than.


You possibly can’t simply drive a Google Maps automobile across the Milky Option to diagram it. It is lucky, then, that new data gathered by the European Space Agency’s Gaia observatory affords essentially the most detailed map but of the galaxy. The venture’s map now consists of nearly 2 billion stars, and it helps the company hint the Milky Manner’s historical past.

“The brand new Gaia information promise to be a treasure trove for astronomers,” Jos de Bruijne, ESA’s Gaia deputy venture scientist, mentioned in a statement.

The brand new data not solely brings the whole variety of stars mapped over seven years as much as near 2 billion, however it consists of “an in depth census of greater than 300,000 stars in our cosmic neighborhood,” which means stars inside 326 light-years of the solar. That 300,000 quantity is believed to be 92% of the celebrities in that space. That is 100 occasions extra stars than the previous information, which dates again to 1991. 

The brand new information supplies location, movement and brightness measurements which might be “orders of magnitude” extra actual than the previous data. In truth, the info is so exact it is revealed that the solar’s path is not a straight line, however barely curved.

“Gaia has been staring on the heavens for the previous seven years, mapping the positions and velocities of stars,” said Caroline Harper, head of house science on the UK Area Company. “Due to its telescopes, we have now in our possession at this time essentially the most detailed billion-star 3D atlas ever assembled.”

The brand new map helps astronomers make predictions, envisioning the actions of 40,000 stars 1.6 million years into the longer term, the company experiences.

This week’s launch is the primary of two components, with the second expected in 2022. Gaia’s “stellar census” began in 2013.

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Anil Kumar

Anil Kumar Gadgets writes for Review Tech smartphones, wearables, headphones and speakers based in Delhi for 360 Tech News. Anil Gadgets is a reviewer for 360 Tech News and has written in detail about smartphones, software updates and upcoming devices.

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